e Cesaro uses a variation called the Neutralizer where he grapevines the opponents leg with his arm similar to a cradle piledriver. Since the wire loop may be moving, we write (t) for the surface. Electric power is the product of two quantities: current and voltage.These two quantities can vary with respect to time or can be kept at constant levels ().Most refrigerators, air conditioners, pumps and industrial machinery use AC power, whereas most computers and digital equipment use DC power (digital devices plugged into the mains typically have an internal or external Question 43. The joule (/ d u l / JOOL, also non-standard / d a l / JOWL; [disputed discuss] symbol: J) is the unit of energy in the International System of Units (SI). (ii) reversing the direction of flow of current in the conductor? Small cooling fans in electronic equipment are powered exclusively by brushless motors. Also known as the Foot Stunner. Here is a derivation from first principles.[9]. Michael Faraday explained electromagnetic induction using a concept he called lines of force. This move starts with the wrestler standing behind the opponent, and then takes hold of the front of the neck or head, and then falls onto his stomach, driving the opponent's back of the head into the mat first. A pop-up is a flapjack where the attacker, upon facing an opponent rushing towards them, flings the opponent vertically up into the air without holding on to the opponent. Liv Morgan uses this move as her finisher when her opponent is standing with the support of the ring ropes. A back body drop or backdrop (also sometimes called a shoulder back toss), is a move in which a wrestler bends forward or crouches in front of their opponent, grabs hold of the opponent, and stands up, lifting the opponent up and over and dropping them behind the back. However, the wrestler holds their opponent's head in a back to back position, before performing the move. Knux calls it The Knuxout. The battery supplies the charge (electrons) that moves through the wires. Therefore, the direction of current in two cases is opposite. [17] It is described as a head scissors take down that is performed against a running opponent. Answer: WNA wrestler Kyle Mckayal uses a jumping version of it as his second hand finisher calling it The Project Mckayal. The first is borrowed from amateur wrestling and sees the wrestler kneel down on one knee and simultaneously grab hold of one of the opponent's thighs with one arm and one of the opponent's arms with their other arm. [8][9] (A rana is any double-leg cradle.) In this design a large current is passed through a metal sabot across sliding contacts that are fed from two rails. The wrestler then quickly lifts the opponent up with that arm and throws them forward, which would lead the wrestler to flip the opponent on to their back to end the move. 1996-2022 The Physics Classroom, All rights reserved. In the conducting circuit, the field Obviously, the electric current will flow through the body of the person who touches the appliance. Usually, the opponent grabs the attacking wrestler (as if he were performing a sidewalk slam), the attacking counters and swings their body upwards, then scissors their legs around the opponent's head, spins around the opponent's body, and swings their legs downwards, resulting in the headscissors takedown. The wrestler then lifts the opponent upside down or on to their shoulders, and then sits down, driving the opponent between their legs, head and shoulder first. This move was innovated by Mikey Whipwreck and popularized by Stone Cold Steve Austin. Some professional wrestlers can use this move as an advantage by running up the turnbuckle and using a high flying move. What is electricity? In all brushless motors, the coils are stationary. The current density must be kept sufficiently low to prevent the conductor from melting or burning up, the insulating material failing, or the desired electrical properties changing. Describe an activity with labelled diagram to show that a force acts on current carrying conductor placed in a magnetic field and its direction of current through conductor. A high voltage battery maximizes this ratio of energy/charge by doing a lot of work on each charge it encounters. Kelly Kelly later adopted the same variation as her finishing maneuver, calling it K2. The potential difference between these wires is 220 V. This move sees the wrestler stand side to side with the opponent, tucking his arm behind the opponent's head at a 90 angle and putting his near leg in front of the opponent's closest leg. A mat slam is any move in which the wrestler forces the back of the opponent's head into the mat which does not involve a headlock or facelock. [9]:510[10][11] In Maxwell's papers, the time-varying aspect of electromagnetic induction is expressed as a differential equation which Oliver Heaviside referred to as Faraday's law even though it is different from the original version of Faraday's law, and does not describe motional emf. With a clear understanding of electric potential difference, the role of an electrochemical cell or collection of cells (i.e., a battery) in a simple circuit can be correctly understood. Justify your answer. This control system is an alternative to the mechanical commutator (brushes) used in many conventional electric motors. , that occurs in the circuit when the magnetic flux changes. The wrestler places the opponent in a front facelock and hooks one of the opponent's legs with their free arm. The wrestler then jumps over them and bulldogs the opponent, driving the chin/face of the opponent into the top rope. This bulldog sees the opponent clutching the wrestler in a wheelbarrow bodyscissors. (b) If field lines of a magnetic field are crossed at a point, what does it indicate? The wrestler may land in a kneeling or squatting position. As the positive test charge moves through the external circuit from the positive terminal to the negative terminal, it decreases its electric potential energy and thus is at low potential by the time it returns to the negative terminal. vt does not contribute to the work done on the charge since the direction of vt is same to the direction of Photo: Lightning happens Current density is important to the design of electrical and electronic systems. The attacking wrestler then drops the opponent face-first into the turnbuckle or ropes. Lenz's law describes the direction of the induced field. The wrestler holds the opponent's wrist while putting their head underneath the opponent's chest, grabs the inside of one of the opponents legs, then lifts the opponent up onto their shoulders while falling backwards. The move was also used by Vampiro with the name nail in the coffin. Here F is the force on the particle, q is the particle's electric charge, v, is the particle's velocity, and denotes the cross product.The direction of force on the charge can be determined by a mnemonic known as the right-hand rule (see the figure). B This was invented by Kensuke Sasaki. A reference to these two aspects of electromagnetic induction is made in some modern textbooks. 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Answer: (b) distance of point from conductor. Answer: Electromagnets are used in electric motors and generators, electric bells and buzzers, loudspeakers and headphones etc. In electromagnetism, current density is the amount of charge per unit time that flows through a unit area of a chosen cross section. The wrestler then throws the opponent to the ground so that they land on their back. The movement of charge through the external circuit is natural since it is a movement in the direction of the electric field. These fields can generally be functions of position r and time t.[23]. Using right hand thumb rube we can draw the magnetic field lines around the conductor as shown. The integral form of the MaxwellFaraday equation describes only the transformer emf, while the equation of Faraday's law describes both the transformer emf and the motional emf. High-acceleration linear motors are normally rather short, and are designed to accelerate an object to a very high speed, for example see the coilgun. Chris Hero has also used this move as well, calling it the Rubik's Cube. Capacitors are bulky and expensive but can supply large amounts of energy quickly. Lenz's law describes the direction of the induced field. Electric power is the product of two quantities: current and voltage.These two quantities can vary with respect to time or can be kept at constant levels ().Most refrigerators, air conditioners, pumps and industrial machinery use AC power, whereas most computers and digital equipment use DC power (digital devices plugged into the mains typically have an internal or external A typical brushless motor has permanent magnets that rotate around a fixed armature, eliminating problems associated with connecting current to the moving armature. Grimes calls it the 'Collision Course'. II", "Allgemeine Gesetze der inducirten elektrischen Strme", "Bypassing Lenz's Rule - A Left Hand Rule for Faraday's Law", The Feynman Lectures on Physics Vol. Low current densities produce spectral line emission and tend to favour longer wavelengths. With the opponent in the air, the attacker removes one arm (so their opponent is now in a half nelson) and slams the opponent back-first into the mat. Similar to the fireman's carry takeover, with more of an emphasis on targeting the neck. Brushless motors offer several advantages over brushed DC motors, including high torque to weight ratio, increased efficiency producing more torque per watt, increased reliability, reduced noise, longer lifetime by eliminating brush and commutator erosion, elimination of ionizing sparks from the commutator, and an overall reduction of electromagnetic interference (EMI). Find expert advice along with How To videos and articles, including instructions on how to make, cook, grow, or do almost anything. Refer to answer 16. (iii) The rule used in finding the direction of motion of the conductor placed in a magnetic field is Flemings left hand rule. At this point, the attacking wrestler shifts their weight so that they fall backwards to the mat while forcing the opponent to fall forwards with them, only to have the attacking wrestler push up with their legs, forcing the opponent to flip forward, over the wrestler's head and onto their back. On the other hand, an electron moving opposite the direction of the electric field will decrease its electrical potential energy. (iv) Distribution box. By providing energy to the charge, the cell is capable of maintaining an electric potential difference across the two ends of the external circuit. In this context they are usually called mass drivers. Answer: [12], All of the following applications are in rapid transit and have the active part of the motor in the cars.[13][14]. This causes the wrestler to switch to his opposite arm before taking his opponent down to the mat while simultaneously landing in a seated position. c. A 9-Volt battery will increase the potential energy of 0.5 Coulombs of charge by 4.5 Joules. Simple controllers employ comparators working from the orientation sensors to determine when the output phase should be advanced. [15]:ch3 A nonzero circulation of E is different from the behavior of the electric field generated by static charges. Now move the compass such that its south pole occupies the position previously occupied by its north pole. (i) There is either a convergence or a divergence of magnetic field lines near the ends of a current carrying straight solenoid because it behaves similar to that of a bar magnet and has a magnetic field line pattern similar to that of a bar magnet. Many electric appliances of daily use like electric press, heater, toaster, refrigerator, table fan etc. the polarization P: Similarly with magnetic materials, circulations of the magnetic dipole moments per unit volume, i.e. Light bulbs, motors, and heating elements (such as in toasters and hair dryers) are examples of energy-transforming devices. This variant is later utilized by former WWE Diva Michelle McCool, who referred to the move as the Faith Breaker. The wrestler starts by facing their opponent and then grabs them around their waist, lifts them up, and then either slams the opponent down while landing on top of them, or tosses them forward on to their back. The electrical energy is available in the form of Alternating current (AC) or Direct current (DC). Answer: ", "Brushless DC Motor vs. AC Motor vs. Current is the flow of electrical charge carriers like electrons. Using Flemings left hand rule, the direction of magnetic field is out of the plane of paper. Question 23. The wrestler hooks each of the opponent's legs in one of their arms, then falls backwards to slingshot the opponent into a turnbuckle, ladder, rope, mat, etc. Zone melting (or zone refining, or floating-zone method, or floating-zone technique) is a group of similar methods of purifying crystals, in which a narrow region of a crystal is melted, and this molten zone is moved along the crystal.The molten region melts impure solid at its forward edge and leaves a wake of purer material solidified behind it as it moves through the ingot. This move originated from the Kinnikuman manga, originally known as the Kinniku Buster (kinniku being Japanese for "muscle"), with the move ending with the opponent crashing down on their neck against the attacking wrestler's shoulder. One ampere of current represents one coulomb of electric charge moving past a specific point in one second. (Board Term I, 2014) A variation of the Michinoku Driver II in which the wrestler stands behind the opponent, applies an inverted facelock, lifts them upside down, and then drops down to a sitting position, driving the opponent down to the mat between the wrestler's legs upper back first.

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